100631031100 has 36 divisors (see below), whose sum is σ = 222489525384. Its totient is φ = 39492930880.

The previous prime is 100631031097. The next prime is 100631031101. The reversal of 100631031100 is 1130136001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100631031101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9488194 + ... + 9498793.

It is an arithmetic number, because the mean of its divisors is an integer number (6180264594).

Almost surely, 2^100631031100 is an apocalyptic number.

100631031100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100631031100 is an abundant number, since it is smaller than the sum of its proper divisors (121858494284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100631031100 is a wasteful number, since it uses less digits than its factorization.

100631031100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18987054 (or 18987047 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 100631031100 its reverse (1130136001), we get a palindrome (101761167101).

The spelling of 100631031100 in words is "one hundred billion, six hundred thirty-one million, thirty-one thousand, one hundred".